This printable crossword puzzle on the topic of Ecology & Evolution has 18 clues. Answers range from 5 to 19 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Barnicle and whale
Makes their own food
Fertilizer and animal urine
tropic level with the most biomass
Photosynthesis, factory output
Frog
after forest fire
brand new rock, brand new lava
leeches
grass, grasshopper, frog
eats the dead
10% of the previous level to the top
energy after consumption is mostly
Honey bee and flower
eats plants and animals
evaporation and precipitation
after natural disturbances
when a species is a must